Parameters:

• Working temperature -30 ° to + 80 °;

• Operating Voltage 5V;

• Standby average current 3ma less;

• support the GSM / GPRS four bands, including 850,900,1800,1900MHZ;

• GPRS Class 10;

• Sensitivity <-105;

• Support voice calls;

• Support SMS text messaging;

• Support GPRS data traffic, the maximum data rate, download 85.6Kbps, upload 42.8Kbps;

• Supports standard GSM07.07,07.05 AT commands and extended commands Ai Thinker;

• Supports two serial ports, a serial port to download an AT command port;

• AT command supports the standard AT and TCP / IP command interface;

• Support digital audio and analog audio support for HR, FR, EFR, AMR speech coding;